/**
 * Mobile UX Tests - Mobile-Specific User Experience Testing
 * Tests touch interactions, rotation handling, camera switching,
 * torch functionality, and permission flows for mobile devices
 */

import { test, expect } from '@playwright/test';

test.describe('Mobile Touch Interactions', () => {
  const testEventId = 'evt-001';
  
  test.beforeEach(async ({ page, context }) => {
    // Set mobile viewport
    await page.setViewportSize({ width: 375, height: 667 }); // iPhone SE
    await context.grantPermissions(['camera']);
    
    await page.goto('/login');
    await page.fill('[name="email"]', 'staff@example.com');
    await page.fill('[name="password"]', 'password');
    await page.click('button[type="submit"]');
    await page.waitForURL('/dashboard');
    await page.goto(`/scan?eventId=${testEventId}`);
    await expect(page.locator('h1:has-text("Ticket Scanner")')).toBeVisible();
  });

  test('should handle touch interactions on all buttons', async ({ page }) => {
    // Test settings button touch
    const settingsButton = page.locator('button:has([data-testid="settings-icon"]), button:has(.lucide-settings)');
    await expect(settingsButton).toBeVisible();
    
    // Touch target should be large enough (minimum 44px)
    const buttonBox = await settingsButton.boundingBox();
    expect(buttonBox?.width).toBeGreaterThanOrEqual(44);
    expect(buttonBox?.height).toBeGreaterThanOrEqual(44);
    
    // Touch interaction should work
    await settingsButton.tap();
    await expect(page.locator('text=Gate/Zone')).toBeVisible();
    
    // Close settings with touch
    await settingsButton.tap();
    await expect(page.locator('text=Gate/Zone')).not.toBeVisible();
    
    // Test torch button if present
    const torchButton = page.locator('button:has([data-testid="flashlight-icon"]), button:has(.lucide-flashlight)');
    if (await torchButton.isVisible()) {
      const torchBox = await torchButton.boundingBox();
      expect(torchBox?.width).toBeGreaterThanOrEqual(44);
      expect(torchBox?.height).toBeGreaterThanOrEqual(44);
      
      await torchButton.tap();
      // Should handle torch toggle without errors
    }
  });

  test('should provide tactile feedback for scan results', async ({ page }) => {
    // Test vibration API integration
    const vibrationSupported = await page.evaluate(() => 'vibrate' in navigator);
    
    if (vibrationSupported) {
      // Simulate successful scan with vibration feedback
      await page.evaluate(() => {
        // Test vibration pattern for success
        navigator.vibrate([50, 30, 50]); // Short-medium-short pattern
        
        window.dispatchEvent(new CustomEvent('mock-scan-result', {
          detail: {
            qr: 'VIBRATION_TEST_SUCCESS',
            status: 'success',
            message: 'Valid ticket',
            timestamp: Date.now(),
            vibrationPattern: [50, 30, 50]
          }
        }));
      });
      
      await page.waitForTimeout(500);
      
      // Simulate error scan with different vibration
      await page.evaluate(() => {
        // Test vibration pattern for error
        navigator.vibrate([200]); // Single long vibration for error
        
        window.dispatchEvent(new CustomEvent('mock-scan-result', {
          detail: {
            qr: 'VIBRATION_TEST_ERROR',
            status: 'error',
            message: 'Invalid ticket',
            timestamp: Date.now(),
            vibrationPattern: [200]
          }
        }));
      });
      
      await page.waitForTimeout(500);
    }
    
    // Scanner should remain functional regardless of vibration support
    await expect(page.locator('h1:has-text("Ticket Scanner")')).toBeVisible();
  });

  test('should handle touch scrolling in settings panel', async ({ page }) => {
    // Open settings
    await page.locator('button:has([data-testid="settings-icon"]), button:has(.lucide-settings)').tap();
    await expect(page.locator('text=Gate/Zone')).toBeVisible();
    
    // Test scrolling behavior if settings panel has scrollable content
    const settingsPanel = page.locator('.settings-panel, [data-testid="settings-panel"]').first();
    
    if (await settingsPanel.isVisible()) {
      // Try to scroll within settings panel
      await settingsPanel.hover();
      await page.mouse.wheel(0, 100);
      
      // Should handle scroll without affecting main page
      await expect(page.locator('text=Gate/Zone')).toBeVisible();
    }
    
    // Test input focus behavior
    const gateInput = page.locator('input[placeholder*="Gate"]');
    await gateInput.tap();
    await expect(gateInput).toBeFocused();
    
    // Virtual keyboard shouldn't break layout
    await gateInput.fill('Gate A - Touch Test');
    await expect(gateInput).toHaveValue('Gate A - Touch Test');
    
    // Dismiss keyboard by tapping outside
    await page.locator('h1').tap();
    await expect(gateInput).not.toBeFocused();
  });

  test('should handle touch gestures and prevent zoom', async ({ page }) => {
    // Test that pinch-to-zoom is disabled for scanner area
    const videoElement = page.locator('video');
    await expect(videoElement).toBeVisible();
    
    // Check viewport meta tag prevents zooming
    const viewportMeta = await page.locator('meta[name="viewport"]').getAttribute('content');
    expect(viewportMeta).toContain('user-scalable=no');
    
    // Test touch events don't interfere with scanning
    const scannerArea = page.locator('.scanner-frame, [data-testid="scanner-frame"]').first();
    
    if (await scannerArea.isVisible()) {
      // Simulate touch on scanner area
      await scannerArea.tap();
      
      // Should not zoom or cause unwanted interactions
      await expect(page.locator('h1:has-text("Ticket Scanner")')).toBeVisible();
    }
    
    // Test swipe gestures don't interfere
    await page.touchscreen.tap(200, 300);
    await page.waitForTimeout(100);
    
    // Scanner should remain stable
    await expect(page.locator('video')).toBeVisible();
  });
});

test.describe('Device Orientation Handling', () => {
  const testEventId = 'evt-001';
  
  test.beforeEach(async ({ page, context }) => {
    await context.grantPermissions(['camera']);
    await page.goto('/login');
    await page.fill('[name="email"]', 'staff@example.com');
    await page.fill('[name="password"]', 'password');
    await page.click('button[type="submit"]');
    await page.waitForURL('/dashboard');
    await page.goto(`/scan?eventId=${testEventId}`);
  });

  test('should adapt layout for portrait orientation', async ({ page }) => {
    // Set portrait mobile viewport
    await page.setViewportSize({ width: 375, height: 667 });
    await expect(page.locator('h1:has-text("Ticket Scanner")')).toBeVisible();
    
    // Video should be properly sized for portrait
    const video = page.locator('video');
    await expect(video).toBeVisible();
    
    const videoBox = await video.boundingBox();
    expect(videoBox?.height).toBeGreaterThan(videoBox?.width || 0);
    
    // Settings button should be accessible
    const settingsButton = page.locator('button:has([data-testid="settings-icon"]), button:has(.lucide-settings)');
    await expect(settingsButton).toBeVisible();
    
    // Stats area should be visible
    await expect(page.locator('text=Online')).toBeVisible();
    await expect(page.locator('text=Total:')).toBeVisible();
  });

  test('should adapt layout for landscape orientation', async ({ page }) => {
    // Set landscape mobile viewport
    await page.setViewportSize({ width: 667, height: 375 });
    await expect(page.locator('h1:has-text("Ticket Scanner")')).toBeVisible();
    
    // Video should adapt to landscape
    const video = page.locator('video');
    await expect(video).toBeVisible();
    
    const videoBox = await video.boundingBox();
    expect(videoBox?.width).toBeGreaterThan(videoBox?.height || 0);
    
    // All critical elements should remain accessible in landscape
    await expect(page.locator('text=Online')).toBeVisible();
    
    // Settings should still be accessible
    const settingsButton = page.locator('button:has([data-testid="settings-icon"]), button:has(.lucide-settings)');
    await settingsButton.tap();
    await expect(page.locator('text=Gate/Zone')).toBeVisible();
    
    // Settings panel should fit in landscape
    const gateInput = page.locator('input[placeholder*="Gate"]');
    await expect(gateInput).toBeVisible();
    const inputBox = await gateInput.boundingBox();
    expect(inputBox?.y).toBeGreaterThan(0); // Should be within viewport
  });

  test('should handle orientation changes smoothly', async ({ page }) => {
    // Start in portrait
    await page.setViewportSize({ width: 375, height: 667 });
    await expect(page.locator('video')).toBeVisible();
    
    // Open settings in portrait
    await page.locator('button:has([data-testid="settings-icon"]), button:has(.lucide-settings)').tap();
    await page.fill('input[placeholder*="Gate"]', 'Orientation Test');
    
    // Rotate to landscape
    await page.setViewportSize({ width: 667, height: 375 });
    await page.waitForTimeout(1000); // Allow for orientation change
    
    // Settings should remain open and functional
    await expect(page.locator('input[placeholder*="Gate"]')).toHaveValue('Orientation Test');
    await expect(page.locator('text=Gate/Zone')).toBeVisible();
    
    // Video should still be working
    await expect(page.locator('video')).toBeVisible();
    
    // Rotate back to portrait
    await page.setViewportSize({ width: 375, height: 667 });
    await page.waitForTimeout(1000);
    
    // Everything should still work
    await expect(page.locator('video')).toBeVisible();
    await expect(page.locator('input[placeholder*="Gate"]')).toHaveValue('Orientation Test');
  });

  test('should lock orientation when supported', async ({ page }) => {
    // Test orientation lock API if available
    await page.setViewportSize({ width: 375, height: 667 });
    
    const orientationLockSupported = await page.evaluate(async () => {
      if ('orientation' in screen && 'lock' in screen.orientation) {
        try {
          await screen.orientation.lock('portrait');
          return { supported: true, locked: true };
        } catch (error) {
          return { supported: true, locked: false, error: error.message };
        }
      }
      return { supported: false };
    });
    
    console.log('Orientation lock support:', orientationLockSupported);
    
    // Scanner should work regardless of orientation lock support
    await expect(page.locator('h1:has-text("Ticket Scanner")')).toBeVisible();
    await expect(page.locator('video')).toBeVisible();
  });
});

test.describe('Camera Switching and Controls', () => {
  const testEventId = 'evt-001';
  
  test.beforeEach(async ({ page, context }) => {
    await page.setViewportSize({ width: 375, height: 667 });
    await context.grantPermissions(['camera']);
    await page.goto('/login');
    await page.fill('[name="email"]', 'staff@example.com');
    await page.fill('[name="password"]', 'password');
    await page.click('button[type="submit"]');
    await page.waitForURL('/dashboard');
    await page.goto(`/scan?eventId=${testEventId}`);
  });

  test('should detect available cameras', async ({ page }) => {
    const cameraInfo = await page.evaluate(async () => {
      if ('mediaDevices' in navigator && 'enumerateDevices' in navigator.mediaDevices) {
        try {
          const devices = await navigator.mediaDevices.enumerateDevices();
          const cameras = devices.filter(device => device.kind === 'videoinput');
          return {
            supported: true,
            cameraCount: cameras.length,
            cameras: cameras.map(camera => ({
              deviceId: camera.deviceId,
              label: camera.label,
              groupId: camera.groupId
            }))
          };
        } catch (error) {
          return { supported: true, error: error.message };
        }
      }
      return { supported: false };
    });
    
    console.log('Camera detection:', cameraInfo);
    
    if (cameraInfo.supported && cameraInfo.cameraCount > 0) {
      expect(cameraInfo.cameraCount).toBeGreaterThan(0);
    }
    
    // Scanner should work with whatever cameras are available
    await expect(page.locator('video')).toBeVisible({ timeout: 10000 });
  });

  test('should switch between front and rear cameras', async ({ page }) => {
    // Check if camera switching UI exists
    const cameraSwitchButton = page.locator('button:has([data-testid="camera-switch"]), button:has(.lucide-camera-switch)');
    
    if (await cameraSwitchButton.isVisible()) {
      // Test camera switching
      await cameraSwitchButton.tap();
      await page.waitForTimeout(2000); // Allow camera switch time
      
      // Video should still be working after switch
      await expect(page.locator('video')).toBeVisible();
      
      // Try switching back
      await cameraSwitchButton.tap();
      await page.waitForTimeout(2000);
      
      await expect(page.locator('video')).toBeVisible();
    } else {
      // If no camera switch button, verify single camera works
      await expect(page.locator('video')).toBeVisible();
    }
  });

  test('should handle camera constraints for mobile', async ({ page }) => {
    // Test mobile-specific camera constraints
    const cameraConstraints = await page.evaluate(async () => {
      if ('mediaDevices' in navigator) {
        try {
          const constraints = {
            video: {
              width: { ideal: 1280 },
              height: { ideal: 720 },
              facingMode: 'environment', // Rear camera preferred for scanning
              frameRate: { ideal: 30, max: 60 }
            }
          };
          
          const stream = await navigator.mediaDevices.getUserMedia(constraints);
          const track = stream.getVideoTracks()[0];
          const settings = track.getSettings();
          
          // Clean up
          stream.getTracks().forEach(t => t.stop());
          
          return {
            success: true,
            settings: {
              width: settings.width,
              height: settings.height,
              frameRate: settings.frameRate,
              facingMode: settings.facingMode
            }
          };
        } catch (error) {
          return { success: false, error: error.message };
        }
      }
      return { success: false, error: 'Media devices not supported' };
    });
    
    console.log('Camera constraints test:', cameraConstraints);
    
    // Scanner should work regardless of specific constraint support
    await expect(page.locator('video')).toBeVisible();
  });
});

test.describe('Torch/Flashlight Functionality', () => {
  const testEventId = 'evt-001';
  
  test.beforeEach(async ({ page, context }) => {
    await page.setViewportSize({ width: 375, height: 667 });
    await context.grantPermissions(['camera']);
    await page.goto('/login');
    await page.fill('[name="email"]', 'staff@example.com');
    await page.fill('[name="password"]', 'password');
    await page.click('button[type="submit"]');
    await page.waitForURL('/dashboard');
    await page.goto(`/scan?eventId=${testEventId}`);
  });

  test('should detect torch capability', async ({ page }) => {
    await expect(page.locator('video')).toBeVisible({ timeout: 10000 });
    
    const torchCapability = await page.evaluate(async () => {
      if ('mediaDevices' in navigator) {
        try {
          const stream = await navigator.mediaDevices.getUserMedia({ video: true });
          const track = stream.getVideoTracks()[0];
          const capabilities = track.getCapabilities();
          
          // Clean up
          stream.getTracks().forEach(t => t.stop());
          
          return {
            supported: 'torch' in capabilities,
            capabilities: capabilities.torch || false
          };
        } catch (error) {
          return { supported: false, error: error.message };
        }
      }
      return { supported: false };
    });
    
    console.log('Torch capability:', torchCapability);
    
    // Check if torch button is visible based on capability
    const torchButton = page.locator('button:has([data-testid="flashlight-icon"]), button:has(.lucide-flashlight)');
    
    if (torchCapability.supported) {
      // Should show torch button if supported
      await expect(torchButton).toBeVisible();
    }
    
    // Scanner should work regardless of torch support
    await expect(page.locator('h1:has-text("Ticket Scanner")')).toBeVisible();
  });

  test('should toggle torch on/off', async ({ page }) => {
    await expect(page.locator('video')).toBeVisible({ timeout: 10000 });
    
    const torchButton = page.locator('button:has([data-testid="flashlight-icon"]), button:has(.lucide-flashlight)');
    
    if (await torchButton.isVisible()) {
      // Test torch toggle
      await torchButton.tap();
      await page.waitForTimeout(500);
      
      // Verify torch state change (visual indication would vary)
      // In a real test, you might check for class changes or aria-pressed attributes
      const isPressed = await torchButton.evaluate(el => 
        el.getAttribute('aria-pressed') === 'true' || 
        el.classList.contains('active') ||
        el.classList.contains('pressed')
      );
      
      // Toggle back off
      await torchButton.tap();
      await page.waitForTimeout(500);
      
      // Should toggle state
      const isPressedAfter = await torchButton.evaluate(el => 
        el.getAttribute('aria-pressed') === 'true' || 
        el.classList.contains('active') ||
        el.classList.contains('pressed')
      );
      
      expect(isPressed).not.toBe(isPressedAfter);
    }
    
    // Scanner functionality should not be affected
    await expect(page.locator('video')).toBeVisible();
  });

  test('should provide visual feedback for torch state', async ({ page }) => {
    const torchButton = page.locator('button:has([data-testid="flashlight-icon"]), button:has(.lucide-flashlight)');
    
    if (await torchButton.isVisible()) {
      // Get initial visual state
      const initialClasses = await torchButton.getAttribute('class');
      const initialAriaPressed = await torchButton.getAttribute('aria-pressed');
      
      // Toggle torch
      await torchButton.tap();
      await page.waitForTimeout(300);
      
      // Check for visual changes
      const afterClasses = await torchButton.getAttribute('class');
      const afterAriaPressed = await torchButton.getAttribute('aria-pressed');
      
      // Should have some visual indication of state change
      const hasVisualChange = 
        initialClasses !== afterClasses || 
        initialAriaPressed !== afterAriaPressed;
      
      expect(hasVisualChange).toBe(true);
      
      // Button should still be accessible
      const buttonBox = await torchButton.boundingBox();
      expect(buttonBox?.width).toBeGreaterThanOrEqual(44);
      expect(buttonBox?.height).toBeGreaterThanOrEqual(44);
    }
  });
});

test.describe('Permission Flows', () => {
  const testEventId = 'evt-001';
  
  test('should handle camera permission denied gracefully', async ({ page, context }) => {
    await page.setViewportSize({ width: 375, height: 667 });
    
    // Don't grant camera permission
    await page.goto('/login');
    await page.fill('[name="email"]', 'staff@example.com');
    await page.fill('[name="password"]', 'password');
    await page.click('button[type="submit"]');
    await page.waitForURL('/dashboard');
    await page.goto(`/scan?eventId=${testEventId}`);
    
    // Should show permission request or error message
    await page.waitForTimeout(3000);
    
    // Scanner should still load the UI
    await expect(page.locator('h1:has-text("Ticket Scanner")')).toBeVisible();
    
    // Should show appropriate error state
    // (Implementation would show permission denied message or retry button)
    
    // Check if there's a retry/permission button
    const permissionButton = page.locator('button:has-text("Grant Camera Permission"), button:has-text("Retry"), button:has-text("Enable Camera")');
    if (await permissionButton.isVisible()) {
      await permissionButton.tap();
      await page.waitForTimeout(2000);
    }
  });

  test('should request permissions on first visit', async ({ page, context }) => {
    await page.setViewportSize({ width: 375, height: 667 });
    
    // Clear all permissions first
    await context.clearPermissions();
    
    await page.goto('/login');
    await page.fill('[name="email"]', 'staff@example.com');
    await page.fill('[name="password"]', 'password');
    await page.click('button[type="submit"]');
    await page.waitForURL('/dashboard');
    
    // Navigate to scanner - should trigger permission request
    await page.goto(`/scan?eventId=${testEventId}`);
    await expect(page.locator('h1:has-text("Ticket Scanner")')).toBeVisible();
    
    // Grant permission when prompted
    await context.grantPermissions(['camera']);
    
    // Should eventually show video
    await expect(page.locator('video')).toBeVisible({ timeout: 10000 });
  });

  test('should handle notification permissions for alerts', async ({ page, context }) => {
    await page.setViewportSize({ width: 375, height: 667 });
    await context.grantPermissions(['camera']);
    
    await page.goto('/login');
    await page.fill('[name="email"]', 'staff@example.com');
    await page.fill('[name="password"]', 'password');
    await page.click('button[type="submit"]');
    await page.waitForURL('/dashboard');
    await page.goto(`/scan?eventId=${testEventId}`);
    
    // Test notification permission request
    const notificationPermission = await page.evaluate(async () => {
      if ('Notification' in window) {
        const permission = await Notification.requestPermission();
        return { supported: true, permission };
      }
      return { supported: false };
    });
    
    console.log('Notification permission:', notificationPermission);
    
    if (notificationPermission.supported) {
      expect(['granted', 'denied', 'default']).toContain(notificationPermission.permission);
    }
    
    // Scanner should work regardless of notification permission
    await expect(page.locator('h1:has-text("Ticket Scanner")')).toBeVisible();
  });

  test('should show helpful permission instructions', async ({ page, context }) => {
    await page.setViewportSize({ width: 375, height: 667 });
    
    // Start without camera permission
    await context.clearPermissions();
    
    await page.goto('/login');
    await page.fill('[name="email"]', 'staff@example.com');
    await page.fill('[name="password"]', 'password');
    await page.click('button[type="submit"]');
    await page.waitForURL('/dashboard');
    await page.goto(`/scan?eventId=${testEventId}`);
    
    await page.waitForTimeout(3000);
    
    // Should show instructions or help text about camera permissions
    // (Implementation would show helpful guidance)
    await expect(page.locator('h1:has-text("Ticket Scanner")')).toBeVisible();
    
    // Look for permission-related text
    const hasPermissionGuidance = await page.evaluate(() => {
      const text = document.body.innerText.toLowerCase();
      return text.includes('camera') && (
        text.includes('permission') || 
        text.includes('access') || 
        text.includes('allow') ||
        text.includes('enable')
      );
    });
    
    // Should provide some guidance about permissions
    if (!hasPermissionGuidance) {
      console.log('Note: Consider adding permission guidance text for better UX');
    }
  });
});